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Wow! That's nice but at an MSRP of $300+ that's pricey for an indicator. It's really two in one Voltage plus Amps with a big range of currents. I'm reasonably happy with a LED indicator for voltage plugged into the cigarette lighter port. Green is around 12.7v, Amber is around 12.5v and red is less than 12.3v. Amber over green means the battery is charging around 13.2v and red over amber and green means overcharging. Duh For current, I remove the house fuse and insert my DMM with a 20A setting. If I'm pulling more than that in the house, the 30A fuse will blow anyway. You could permanently install two meters: DC Volts and Amps, but it would probably cost about $200 and then you'd have 2 meters, not one.
Bruce Ross Passage ~ SR-FK ~ C25 #5032 Port Captain — Milford, CT
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.